Valve device



March 7, 1950 e. R. WALLEN ETAL VALVE "DEVICE Filed Nov. 4, 1944 Jivuwvm 8R. Weill/6Tb, HrberbR17'wnec75 Gear Patented Mar. 7, 1950 VALVE DEVICE George R. Wallen and Herbert R. Trausneck, New

York, N. Y., assignors to Anemostat Corporation of America, New York, N. Y., a corporation of Delaware Application November 4, 1944, Serial No. 562,027

1 Claim.

This invention relates to nozzles, particularly for directing heated air over window surfaces to remove frost and ice therefrom and to prevent the formation of frost and ice thereon, and has for its general object to provide, for this and analogous purposes, a simple, practica1 nozzle which is specially adapted for disposition with respect to a window or other surface to direct a layer of heated air substantially uniformly over an extensive area thereof so as to accomplish its purpose expeditiously and eiliciently.

Other and more specific objects 01 the invention are: to provide a nozzle embodying simple, practical valve means to control discharge of air therefrom; to provide simple practical means to direct the discharged air against the window or other surface with which the nozzle is associated; and to provide simple, practical means for effecting intermixture of atmospheric air with the heated air in order to reduce the tempera ture of the heated air in certain instances.

With the foregoing and other objects in view, which will become more fully apparent as the nature of the invention is better understood, the same consists in a nozzle embodying the novel features of construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawings and defined in the appended claim.

In the accompanying drawings, wherein like characters of reference denote corresponding parts in related views:

Fig. 1 is a central, vertical, longitudinal section through a nozzle constructed in accordance with the invention; and

Fig. 2 is a section on the line 2-2 of Fig. 1.

Referring to the drawings in detail, it will be observed that the present nozzle comprises a tubular element III which is closed at its front end, open at its rear end for supply of heated extend transversely across a window framing and to have its closed front end disposed adjacent to a window surface so that heated air discharged through the slot II will be directed fan-wise over the window surface. In this connection, the element I may be of a length to extend across a window framing of any width to permit the closed front end of said element and, consequently, the slot II to be disposed more or less closely adjacent to the window surface. Moreover, the open rear end of said element I0 may be connected in any suitable manner with a source of supply of heated air. Preferably, however, this connection, at least adjacent to said element I0, is disposed at right angles, or at substantially right angles, to said element so as to air supply duct.

. 2 extend laterally from the window and thus not occupy space directly in line with the window.

The element I0 may be mounted in any suitable manner at any desired location relative to a window at, of course, the inner side thereof. Preferably, however, it is mounted either at the bottom or at one side of the window, although it may be mounted at the top thereof if desired. In any event, it is mounted with its slot II disposed to direct the discharged air oversubstantially all, or the desired portion, of the window surface. Moreover, the element I0 may be of any desired shape in cross section and the slot I I may be of any desired width and length. Preferably, however, the element I0 is of circular shape in cross section and the slot II is of approximately in length so that the fan-like layer of air discharged therethrough is directed over substantially the entire window surface, assuming, of course, disposition of the nozzle at the bottom, or at one side, or even at the top of the window, as aforesaid.

While the open rear end of the element I0 may be connected in any suitable manner with a source of supply of heated air, it is preferred to provide, as a part of the nozzle, a hollow air supply head I2 to serve both as a support for said element I0 and as a housing for valve means for controlling discharge of air through'the slot II. In this connection it will be observed that the head I2, is of fiat, peripherally rounded form at one end and develops toward its other end into a cylindrical neck I3 for connection with an It will further be observed that the element I 0 is joined at its open rear end to the front of the head I2 near the first mentioned end of the latter and is disposed at right angles to said head; also, that the front wall I4 of said head to which the open rear end of said element I0 is joined, is provided with an opening I5 in alinement with said element to afford communication between the latter and said head. that the slot II is in the side of the element III remote from the air inlet end of the head I2. Accordingly, the head as a support and mounting means for the element II) and as a housing for valve means to control the air flow, but also as a practical means of extending the air supply laterally from awindow with which the nozzle. I0 may be operatlvely associated.

The wall It which closes the front end of the element I0 is of conical form and flares forward-'- ly relative to said element. It will be apparent, therefore, that air flowing forwardly through the element III will be deflected by said wall I6 forwardly throughthe slot I I against a window surface with respect to which the nozzle is operatively disposed; It will also be apparent that this In addition, it will be observed- I2 serves not only 3 forward deflection of the air will be uniform throughout the length or angular extent of the slot ll due to the conical form of the wall I! and the cylindrical form of the element ll. As previously indicated, however, it is not essential that the element ll be of cylindrical form. On the contrary, only the portipn of said element which is annularly coextensive-or substantially coextensive with said slot need ,be of cylindrical or substantially cylindrical form. Likewise, only the portion of the wall I or its equivalent which is annularly coextensive or substantially coextensive with said slot need be of conical or substantially conical form. Moreover, the equivalent of the wall I obviously may be provided by an element separate and distinct from said wall as, for example, by a block or the like inserted in the front end portion of the element and having its rear end of conical or substantially conical form.

A valve in the form of a disk 29 is provided for controlling discharge of air through the slot II. This disk isof a size to cover the opening I! and is disposed in the head l2, being pivotally mounted, as indicated at 30, upon the front wall ll of said head at a point approximately in line with a point midway between the ends of the slot l I. It is swingable between a closed position in which it is disposed against the wall ll of the head I 2 in covering relationship to the opening I5, as shown by full lines in Fig. 1, and an open position in which it extends at an angle to said wall I, as shown by dotted lines in Fig. 1, so as to assist in deflecting the supplied air forwardly through the slot l I against a window surface disposed in front of said slot.

Any suitable means may be provided for actuating the disk 29 to open and closed positions to control discharge of air through the slot II. In the present instance snap action means is provided for actuating said disk to its fully open and its fully closed positions. This means comprises a lever 3i pivoted intermediate its ends, as indicated at 32, upon the rear wall 23 of the head I2 and having its forward end disposed in said head and its rear end disposed rearwardly of said head. Carried by the rear end of said lever is a handle 33 for effecting rocking movements thereof, while connecting the front end thereof with the disk 29 is a link 34, the arrangement being such, as shown, that by rocking said lever in one direction said disk is swung toward its open position and by rocking said lever in the other direction said disk is swung toward its closed position. Pivoted to the free end portion of the disk 29 is a rod 35, while fixed within the head i! beyond the free end portion of said disk is a cross bar 36 having therein, at a point approximately midway between the front and the rear walls of said head, a guide opening 31 through which thevrod 35 extends. In addition, a compressed coil spring 33 surrounds said rod 35 between the cross bar 36 and the pivotal connection of said rod with said disk and, by its constant tendency to expand, reacts from said cross bar to swing said disk to either its closed or its open position, depending upon whether said disk is disposed either forwardly or rearwardly of a plane including the opening 31 and the pivot 30 of said disk. The lever 3| is effective to swing said disk from either its closed or its open position to a position beyond the said plane and thereafter the spring 38 ohviously acts to effect completion of the opening or closing movement of said disk with a snap action.

A division of the present application, Serial No. 635,855, was filed on December 19, 1945, and has matured into Patent No. 2,434,340, dated January 13, 1948.

From the foregoing description considered in connection with the accompanying drawings it is believed that the construction and mode of operation of the present nome will be readily understood and its advantages appreciated. It is desired to point out, however, that while only certain specific embodiments of said nozzle have been illustrated and described the same is readily capable of various other specific embodiments within the spirit and scope of the invention as defined in the appended claim.

We claim:

A device of the character described comprising a hollow head having in its bottom an air inlet opening, said head including front and rear walls in the former of which is an air outlet opening, a valve plate in said head pivoted at its top to the front wall of said head adjacent to the top of said air outlet opening for swinging movement between open and closed positions relative to said air outlet opening, a member fixed in said head below said valve plate and having a guide opening therein, a rod pivoted to a lower part of said valve plate and extending loosely through said guide opening, a coil spring surrounding said rod above said member and tending constantly to react from the latter to urge said rod upwardly, whereby it operates to effect either opening or closing movement of said valve plate depending upon whether the pivotal connection of said rod with said valve plate is disposed forwardly or rearwardly of a plane including the pivotal connection of said valve plate with said front wall and the guide opening in said member, and means for initiating opening and closing swinging movements of said valve plate from closed and open positions thereof, respectively, comprising a lever pivoted to the rear wall of said head and having a link connection with said valve plate.

GEORGE R. WALLEN. HERBERT R.-TRAUSNECK.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 884,678 Owens Apr. 14, 1908 1,073,978 Geddes Sept. 23, 1913 1,389,360 De Graf Nov. 16, 1920 1,389,593 Millar Sept. 6, 1921 1,582,488 Sherwood Apr. 27, 1926 1,599,411 Gilsenan Sept. 14, 1926 1,766,126 Johnson June 24, 1930 1,805,782 Munz May 19, 1931 1,809,763 Tarrant June 9, 1931 2,008,834 4 Marchaut July 23, 1935 2,086,183 Gellner et al. July 6, 1937 2,311,195 Young Feb. 16, 1943 2,359,646 Hulton Oct. 3, 1944 2,372,830 Honer Kamp et al. Apr. 3, 1945 2,400,880 Hoppman, Jr. May 28, 1946 FOREIGN PATENTS Number Country Date 25,814 Great Britain -1 Nov. 15, 1906 

